Department of Molecular Biotechnology, Ghent University, 9000 Ghent, Belgium; email:
Annu Rev Phytopathol. 2014;52:135-53. doi: 10.1146/annurev-phyto-102313-050111. Epub 2014 May 30.
Being one of the major staple foods in the world, and an interesting model monocot plant, rice (Oryza sativa L.) has recently received attention from molecular nematologists studying the cellular and molecular aspects of the interaction between this crop and plant-parasitic nematodes. In this review, we highlight recent advances in this field, with a focus on the best-studied root-knot nematodes. Histological studies have revealed the cellular changes inside root-knot nematode-induced feeding sites, both in the compatible interaction with Oryza sativa and the incompatible interaction with the related species Oryza glaberrima. After comparing the published data from transcriptome analyses, mutant studies, and exogenous hormone applications, we provide a comprehensive model showing the role and interaction of plant hormone pathways in defense of this monocot crop against root nematodes, where jasmonate seems to play a key role. Finally, recent evidence indicates that effectors secreted from rice-infecting nematodes can suppress plant defense.
作为世界上主要的主食之一，也是一种有趣的单子叶模式植物，水稻（Oryza sativa L.）最近受到了研究这种作物与植物寄生线虫相互作用的细胞和分子方面的分子线虫学家的关注。在这篇综述中，我们重点介绍了该领域的最新进展，特别是对研究最深入的根结线虫。组织学研究揭示了在根结线虫诱导的取食部位中，与 Oryza sativa 相容互作和与相关物种 Oryza glaberrima 不相容互作过程中的细胞变化。在比较了转录组分析、突变体研究和外源激素应用的已发表数据后，我们提供了一个综合模型，展示了植物激素途径在防御这种单子叶作物免受根线虫侵害中的作用和相互作用，其中茉莉酸似乎发挥了关键作用。最后，最近的证据表明，从感染水稻的线虫中分泌的效应子可以抑制植物防御。
